Electrically operated musical instrument,申请号US19480018196-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Electrically operated musical instrument
摘要
申请公布号	US2647426(A)	申请公布日期	1953.08.04
申请号	US19480018196	申请日期	1948.03.31
申请人	BATTLE WILLIAM F;BATTLE MICHAEL A	发明人	BATTLE WILLIAM F.;BATTLE MICHAEL A.
分类号	G10H1/32;G10H5/04	主分类号	G10H1/32
代理机构		代理人
主权项
地址

您可能感兴趣的专利

SURFACE WAVE ELECTRO-MECHANICAL DEVICE

Self:supporting sandwich panel for roofs and walls - has expanded polystyrene layer between two chipboards and laths

Inflatable body press. control unit - uses pressure dependent switch for pump motor drive dependent on pressure level

Sheet separation machine from paper stack - has suction wheel transporting along curved path from stack arranged tangentially

Coal cutting machine safety brake - has brake combined with motor tachogenerator and associated with electric drive monitoring circuit

Locking plastic profile for roller blind - is stiffened by iron core and has attached casing preventing it from being pulled into roller shutter box

Chair adjustable between two positions - is made of steel tubing, with base supports and seat struts acting as levers for shifting weight forwards or backwards

Spark erosion machine for metal workpieces - using friction drive for rapid vertical adjustment of tool electrode

Tellerium-stabilised electroless copper plating soln. - by addition of tellurous or telluric acid or salt

Electrostatic gas purification using filter medium - with the filter placed between the ionised gas and one electrode

Air conditioning and ventilation system for greenhouse - has roof mounted air take=off with air feed device and air conditioner

TV receiver with HV rectifier coupled to CRT anode - has connecting cable with screening and resistive layer between latter and inner conductor

Drill tubes manipulator - handles drill tubes during coupling and uncoupling operations without crane

Porous light concrete slab assembled noise screen wall - has interconnected slabs held between upright support and cross beam flanges

Cleaning appliance for felt covering of painting roller - has ring-shaped working piece attached to handle for sliding over roller with narrower opening forging surplus paint in one direction

Electric circuit safety device - has adjacent, relatively rotatable plates, each with non-concentric aperture in form of radial slots

Fractured bone fixing assembly - has steel drill bit with threaded end received in socket of pin

Floor tiles made of expandable clay and organic material e.g. wood - in which clay fills voids formed by organic material during baking

Balanced IC engine with opposed pistons - has connection to crank by parallelogram linkage pivoted to pistons at diagonally opposite points